<script setup lang="ts">
import { uploadAvatarApi } from "@/api/system/profile";
import 'vue-cropper/dist/index.css'
import { VueCropper } from "vue-cropper";

const { proxy } = getCurrentInstance();

const userStore = useUserStore();

const cropperRef = ref();

const open = ref(false);

// 弹窗
const visible = ref(false);

// 弹窗标题
const title = ref("修改头像");

//图片裁剪数据
const options = ref<CropperOptions>({
  img: userStore.avatar,     // 裁剪图片的地址
  autoCrop: true,            // 是否默认生成截图框
  autoCropWidth: 200,        // 默认生成截图框宽度
  autoCropHeight: 200,       // 默认生成截图框高度
  fixedBox: true,            // 固定截图框大小 不允许改变
  outputType: "png",         // 默认生成截图为PNG格式
  filename: 'avatar',        // 文件名称
  previews: {}               //预览数据
});

/** 实时预览 */
function realTime(data) {
  options.value.previews = data;
}

function editCropper() {
  open.value = true;
}

/** 打开弹出层结束时的回调 */
function modalOpened() {
  visible.value = true;
}

/** 覆盖默认上传行为 */
function requestUpload() {
}

/** 上传预处理 */
function beforeUpload(file) {
  if (file.type.indexOf("image/") == -1) {
    $modal.msgError("文件格式错误，请上传图片类型,如：JPG，PNG后缀的文件。");
  } else {
    const reader = new FileReader();
    reader.readAsDataURL(file);
    reader.onload = () => {
      options.value.img = reader.result;
      options.value.filename = file.name;
    };
  }
}

/** 图片缩放 */
function changeScale(num) {
  num = num || 1;
  cropperRef.value.changeScale(num);
}

/** 向左旋转 */
function rotateLeft() {
  cropperRef.value.rotateLeft();
}

/** 向右旋转 */
function rotateRight() {
  cropperRef.value.rotateRight();
}

/** 上传图片 */
function uploadImg() {
  cropperRef.value.getCropBlob(data => {

    const formData = new FormData();

    formData.append("avatarfile", data, options.filename);
    uploadAvatarApi(formData).then(response => {
      open.value = false;
      if (response.imgUrl) {
        options.value.img = import.meta.env.VITE_APP_BASE_API + response.imgUrl;
        userStore.avatar = options.value.img;
      }
      $modal.msgSuccess("修改成功");
      visible.value = false;
    });
  });
}
</script>

<template>
  <div class="user-info-head" @click="editCropper()">
    <img :src="options.img" class="img-circle img-lg" />
    <el-dialog
        :title="title"
        v-model="open"
        width="800px"
        append-to-body
        @opened="modalOpened"
        :close-on-click-modal="false"
    >
      <el-row>
        <el-col :span="12" :style="{ height: '350px' }">
          <vue-cropper
              ref="cropperRef"
              :img="options.img"
              :info="true"
              :autoCrop="options.autoCrop"
              :autoCropWidth="options.autoCropWidth"
              :autoCropHeight="options.autoCropHeight"
              :fixedBox="options.fixedBox"
              :outputType="options.outputType"
              @realTime="realTime"
              v-if="visible"
          />
        </el-col>
        <el-col :span="12" :style="{ height: '350px' }">
          <div class="avatar-upload-preview">
            <img :src="options.previews.url" :style="options.previews.img" />
          </div>
        </el-col>
      </el-row>
      <br />
      <el-row>
        <el-col :lg="2" :span="2">
          <el-upload
              action="#"
              :http-request="requestUpload"
              :show-file-list="false"
              :before-upload="beforeUpload"
          >
            <el-button>
              选择
              <icon-svg icon-name="Upload" />
            </el-button>
          </el-upload>
        </el-col>
        <el-col :lg="{ span: 1, offset: 2 }" :span="2">
          <el-button icon="Plus" @click="changeScale(1)"></el-button>
        </el-col>
        <el-col :lg="{ span: 1, offset: 1 }" :span="2">
          <el-button icon="Minus" @click="changeScale(-1)"></el-button>
        </el-col>
        <el-col :lg="{ span: 1, offset: 1 }" :span="2">
          <el-button icon="RefreshLeft" @click="rotateLeft()"></el-button>
        </el-col>
        <el-col :lg="{ span: 1, offset: 1 }" :span="2">
          <el-button icon="RefreshRight" @click="rotateRight()"></el-button>
        </el-col>
        <el-col :lg="{ span: 2, offset: 6 }" :span="2">
          <el-button type="primary" @click="uploadImg()">提 交</el-button>
        </el-col>
      </el-row>
    </el-dialog>
  </div>
</template>

<style scoped lang="scss">
.user-info-head {
  position: relative;
  display: inline-block;
  height: 120px;
  text-align: center;
  margin: auto;

  .img-lg {
    width: 120px;
    height: 120px;
    margin: auto;
  }

  .img-circle {
    border-radius: 50%;
  }
}

.user-info-head:hover:after {
  content: "+";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  color: #eee;
  background: rgba(0, 0, 0, 0.5);
  font-size: 24px;
  font-style: normal;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  cursor: pointer;
  line-height: 110px;
  border-radius: 50%;
}

.avatar-upload-preview {
  position: absolute;
  top: 50%;
  transform: translate(50%, -50%);
  width: 200px;
  height: 200px;
  border-radius: 50%;
  box-shadow: 0 0 4px #ccc;
  overflow: hidden;
}

</style>